Update content-blocker extension to 2026.9.23 (#5967)

Co-authored-by: dharb <4481594+dharb@users.noreply.github.com>

Author: daxtheduck

overrides/windows-override.json

@@ -5179,7 +5179,7 @@
             "minSupportedVersion": "0.148.0",
             "exceptions": [],
             "settings": {
-                "extensionUrl": "https://staticcdn.duckduckgo.com/extensions/content-blocker/content-blocker-extension-2026.9.21.crx"
+                "extensionUrl": "https://staticcdn.duckduckgo.com/extensions/content-blocker/content-blocker-extension-2026.9.23.crx"
             },
             "features": {
                 "onboardingEnabled": {